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Question:

Solve: 428 •\u00A039

A 16,692
Explaination

Write the problem vertically with the larger number on top (in this case, 428 on top). Line up the ones digits (the 8 and the 9 in this case). First, multiply 9 •\u00A0428 and write the answer below (3,852). Then add a zero in the ones place and multiply 3 •\u00A0428 and write the answer (write 12,840). Add the two products (3,852 + 12,840 = 16,692). 428 •\u00A039 = 16,692